US1575135A - strong - Google Patents

Description

March '2 1926.

Filed Feb. 21, 1924 smegsheet 1 March 2 1926.,

Y E. E. STRONG COMBINED TYPEWRITI'NG AND COMPUTING MACHINE Filed Feb. 2l, 1924 Patented Mar. 2, 1926.

uufirso smrss PA sur carica.

CHNE COMPANY, F NEW YORK, N. Y., A CORPORATION 0F NEW YORK.

COIhIBINED TYPEWBITING AND COMPUTING MACHINE.

Application aledlebruary 21, 1924. Serial No. 694,211.

To (ill whom it may concern:

. Be itknown that I, ELISHA E. STRONG, a

l citizen of the United States, residing in the city of Paris, Republic of France, have invented certain new and useful Improvements in Combined Typewriting and Computing Machines, of which the following is a specification.

This invention relates to computing machines, and is herein illustrated as applied to an Underwoody bookkeeping machine.

In an Underwood bookkeeping machine,

the different digits of a number may be int dexed either for addition or. subtraction,

and, afterthev indexing has been completed,

computation of the number indexed may be effected by ineans of a general operator, and the result shown in a register comprising dials or number-wheels, the carry-over between successive denominations being eHectedl during the return movement of the vgeneral operator. To guard against accidental displacement ofthe dials, provision may be made ofmeans to'lock the dials when the general operator is either in advanced position or in its normal position. Usually at the end of a computation, the machine is Jso set-that, upon typing a result and actuating thegeneralI operator, the register will be cleared. As a check on the carrying operation, provision may be made of a star-key locked against operation when any dialwlieel is displaced rom 0 position, and of means actuablev by; the .star-key to print a star on the work-sheet to indicate that the re ister is clear.

n certain'classes of work,.as, for example, in banks, in counting consecutively numbered coupons or 'divi'dendwarrants it is desirable to write or typeI the low serial number `1n one column, the high serial number in another column, andthe number of cou ons or the like in a third column. I t wil be seen that the number of coupons is not the f' diiiercnce between the highest serial number and the lowest serial nmber, but is greater than such difference by one unit.

- e An .object of the resent invention consists inthe provision o lmechanism for computing the number of articles in a series' of consecutively numbered` articles when the coml"puting mechanism is operated inv succession star-key in its usual operation to print a star on the work-sheet to indicate that the register is clear.

Another feature of the invention consists inthe provision of such locking means for the units dial as to prevent overthrow of theunits dial and to lock it against accidental displacement when the general operator is in its normal position and at the same time to permit actuation of the units dial by the star-key.

Another feature of the invention consists in the provision of means to prevent more than one advance movement of the units dial preparatory to such typing and'comput'ation of the highest and lowest coupon numbers. According to the present embodiment of the invention, this desideratum is met by the means operatedby the dial-wheels 'for locking the star-key, upon its return in a previous actuation, against operation when any dial is shifted from its 0 position. Obviously, the star-key maybe actuated when the register is clear, and, according to the present invention, willturn the dial through one step. The star-key lock will then become elective to prevent; further advance of the units dial by the star-key.

A further feature of the invention consists of means, including a register to be used in combination with the couponcounting rcgister, to` accumulate the results computed in the coupon-counting register, andthereby re ister the total number of coupons in all o the packs. Preferably this result is obtained by means of a .reverse-dial register, such as heretofore in use in Underwood bookkeeping machines, into which the number of coupons in apack is added concomitantly with the subtraction-of the number from the coupon-counting register to clear the latter.

, ELISHA E. STRONG, OF PARIS, FRANCE, ASSIGNOR-TO UNDERWOOD COMBUTING MA- A 50. depression of a numeral-key 11 will effect thereto.

Other features and advantages will hereinafter appear.

' In the accompanying drawings,

Figure 1V is a sectional side elevation, showing a portion of an Underwood bookkeeping machine with the invention applied coupons and the total number of coupons inthe different packs and the method of computing in one register the number of' coupons in each pack and in another register 1he total number of 'coupons in all of the packs.

Upon the depression of numeral-keys 11,

.the corresponding key-levers 12 are actuatedl in the usual manner to effect typing, and links or pendants 13, pivoted at their upper ends Vto the numeral-key-levers 12, strike arms 14 projecting laterally from shafts 15, of which there is one for each significant digit. Each pendant 13 acts on the corre spending arm 14 to rock the corresponding shaft 15, and, -by .means of an arm. 16 fixed on the shaft, transmits motion to an upper bar 17 of an indexing linkage and causes a. corresponding setting bar 18 to depress or set a pin or member 19 on` one of a series of denominational members Aor bars 20. Normally, such bars 20 are held in such normal or rearward positions that the pins 19 lie opposite the intervals between the setting bars 18. When, however, the typewriter ca'rriage (not shown) asses through a 'computing zone, the denomlnational members or computing bars 20 are advanced, che by one, from left to right, as illustrated in the patent to A. G. Kupetz,-No. 1,452,- 162, vdated Ap-ril 17, 1923, to bring the pins 19 thereon under the setting bars 18, so that the depression or setting of ing in 19.`

the `correspond- A ter all of the digits in the number have `been typed and indexed on the pins 19 of the denominational members 20, the general 'operator may be.actuated manually by means of a handle (not shown) on a shaft 21,

or bymeans of a motor-operating device (one,

form of which is shown in the patent to A. J. W'oOd, No. 1,299,646, dated April 8, 1919) acting through an arm. 22 rejecting upwardly into a fork or yoke 23 xed on a rack-bar 24 forming part of the general operator 25. Tt will be seen that the shaft .21 is Opertively connected with the rack- Vspring 43. Upon traction-key 35, the su traction-bar 41 is re- Larmes bars 24 of the general operator by means of toothed sectors 26 fixed on shaft 21 and' meshing with pinions 27, which, in turn, mesh with said rack-bars 24. y

In the forward movement of the general operator, a cross-bar 28 thereon is brought v into engagement with the lower ends of the depressed or set pins 19 and thereby advances the denominational members 20 distances corresponding to the digits indexed, such forward motion of the denominational members 2O being transmitted by racks 29 meshing with pinions (not shown), to turn dials or number-wheels 30 mounted on a member or rod 30a forming part of a regishaving such 'a one-way connection with the general operator 25 as to be actuated during the return movement thereof.

To set the machine for subtraction, provision may be made of a subtraction-key 35 en the forward end of a link 36 ivoted at its rear to an upright arm 37 xed on a transverse shaft 38 carrying a hook 39 nor-Y mally held in engagement with a shoulder 4.0 on a subtraction-bar 41 by means of a spring 42 to hold the subtraction-bar 41 in forward 'position a ainst the action of a e ression of the subleased to move rearwardly under the action of the spring 43, and, in such rearward movement, a pin 44 on the subtraction-bar, pro]ect1ng into a slot 45 in anl arm 46, acts to rock a shaft 47 upon which said arm 46 is mounted. Through connections includ- .ing a second arm 48, fixed on the shaft 47 and having a pin-and-slot connection 49 with an arm 50 fixed to' a transverse bar 51,

ivoted near its upper edge and extending into notches 52 in the sha fts 15, the rocking of the shaft 47 .acts to advance the shafts 15 and thereby change the connection between the same and the bars l17 of the indexing linkages, so that the pins 19 complementary,

to the basenine, to the values of the digits` on the keys will be set by the keys 11.

Concomitantly with the forward shifting of the shaft-s 15, all of the 9 pins on the denominational members 20 are set, and, when the machine has thus been set for suhtraction, depression of any one of the numeral-keys 11 will effect thc-setting of the pin 19. of crm'iplementaryV value, on the de nominational member 20 selectively ndvanced by the carriage. and .at the 'same time a bar 53 will be depressed to engage the rear @ad of a leve; 53 and restore tu ter 31 to cause results to be displayed at a normal position the 9 pin on the selected member 20. The subtraction-setting mechanism may be such as heretofore used in the Underwood bookkeeping machine, one form of such mechanism being shown in the hereinbefore-mentioned patent to A. G. Kupetz, No. 1,452,162, dated April 17, 1923.

Fixed to each of the dial-wheels is a gearwheel 54 which may form part of the carryover mechanism, and which may also be utilized for other purposes. To prevent overthrow at the end of a forwardmovement of the general operator 25, and at the end of a carry-over action effected by the return of the general operator to its normal position, provision may be. made of a plurality of levers or stops 55, which may be pivoted on a fixed rod 56, so that a tooth on the forwardly-extending arm of each lever 55 may project into a notch between successive teeth of the corresponding gearillustrated in the patent to J. N. Thornton,

, spring 69, is

No. 1,228,148,`dated May 29, 1917.

The pivoted levers 55 are also provided with projections extending downwardly and rearwardly from the arms 57 to form hooks 59 to be engaged by a bail 60 comprising a transverse bar 61 supported at its ends in arms 62 mounted on a. transverse shaft 63 the movement of which is controlled by means of a rearwardly-extending arm 64 having a downturned rear end to be engaged by cams 65 and 66 mounted in any suitable manner on one of the general-operator racklbars 24, so as to engage the rear end of the arm 64 when the general operator 25' approaches either its extreme forward position or its extreme rearward position, frespectively, thus holding the transverse bar 61 againstupward movement and locking the pivoted levers 55 in effective position to prevent rotation of the dials 30.

Upon completion of a computation, it is customary to change the state of the computing mechanism, and, concomitantly with the `typing of the result on a work-sheet, to clear the register. In order to test and indicate the correct copying of the ',result, pro- `vision may be made of means, operable only when the register is clear, for print-ing a clearance-sign,*usually a star, adjacent the result. herein disclosed, a clearance-proving or star key 67, mounted on a plunger 68 'and normally held in raised position by means of a provided with a rearwardlyextending projection 7 0 to co-operate with bail 7l swngabl about a xed axis 72.

In the form of the proving device.

and urged out of the path of the projection by means of a spring 73 connected at one end to the bail 7l and at the other end to 'a fixed plate 74 at one end of the register 31.

The position 'of the bail 71 may be determined by pivoted detente 75, one for each gear-wheel 54, and having projections 76 to engage between the teeth of the gearwheels 54, the size of the projections 76 being such that each detent will be held far enough away from the common axis of the gear-wheels to position the bail 71 beneath the rearward projection 70 on thestar or clearance key 67, thereby locking such key against depression. When, however, each of the dials 3() is so positioned as to display O at the sight-opening, the projections 76 on the detents 75 will be permitted to move closer to the ,axis of the dials 30, due to the cutouts 77 on the operatively positioned teeth, and the bail 71 will be ineffective to -lock the key 67. As soon, however, as any one of the dials 30v is moved from O position7 the corresponding detent 75 will be pressed forward to a sufficient extent, to render the bail effective for locking the star-key. One form. of such star-kcy-locking mechanism is disclosed in' the patent to B. C. Stickney, No. 1,396,348, dated November 8, 1921.

lVhen the dials 30 are in their O positions, the star-key 67 may be depressed to swing downwardly an arm 78 mounted on a shaft 79 and engaging a lug 80 projecting laterally from an arm 81 fixed on the shaft 79, the connection between the arm 78 and the shaft 79 being such that downward swinging of the arm 7 8 will rock the shaft 79, but rocking of the shaft 79 may be effected independently of the arm 78, as, for example,'by a. star-key for another register. Fixed on the shaft 79 is an upwardly-projecting arm 81a having a tooth 82 normally underlying a pin 83 on a link or pendant 84 connected, near its upper end, by a pivot 85 to an arm 86 fixed on a shaft 87, the

end to the uper end of the link 84, land at its other end to an upwardly-projecting lug 89 on the arm 86. The forward movement of the lower end of the link 84 may be limited by the shaft 79.

The arm 86 is urged downwardlyv by a spring 90, so that, when the tooth on the upwardly-projecting arm 81 1s shifted forward1yout ofthe path of the pin 83 by depression 0f the star-key 67, the shaft 87 will be rocked and a suitable clearance-sign, such as a. star, printed on the work-sheet. The connections through which this operation is effected comprise an arm 90 xed on the shaft 87, a link 91 connected with arm 90a by a pivot 92, and a lever 93 connected with the upper end of the link 91 v by a pivot 94 and corresponding to the keylevers 12. The star-key mechanism may be restored to normal condition by operating the general operator 25, thereby causing a cam 95 on the carry-over shaft 34 to engage a lateral projection 92EL on the arm 864 and raise the link 84 sufficiently to permit the pin 83 thereon to be supported by the tooth 82. It should be understood that the Underwood bookkeeping machines now'in use have star-key mechanism, one form of which is disclosed in the patent to F. A. Hart, No. 1,190,287, dated July 11, 1916.

In the form of the invention herein disclosed, use is made of the star-key 67 to advance the units dial of the coupon-counting register from a 0 reading to a l reading, preliminary to typing the high and low serial numbers of a bunch or pack of consecutively numbered coupons and computing the diiierence between said serial numbers, thel result registered being one unit more than said difference and indicating the number of coupons.

For effecting such preliminary advance movement of the units dial, provision may be made of an arm 96 loosely mounted on the shaft T9 and in spaced relation to the arm 7 8, to-which it is rigidly connected by means of members or pins 97, a link 98 connected with the arm by means of a pivot 99,`

alevei 100 pivoted to turn about the rod 30". forming a vcommon axis of the dials 30, and a pawl 101 on the lever 100 to engage the gear-wheel 54 attached to the units dial and toA advance it one step at a time. The lever 100 is positioned just outside the righthand plate 74 of the register, and is provided with an arcuate slot 102 through which extends the shankof av screw 103 threaded into the plate 74. It will be seen that the screw 103 serves to hold the lever 100 in position relatively to the plate 74 and may also be used to limit the rocking movement of the lever. v

As illustrated in Figure 2, the lever 100 is provided with an offsetl104 on which the pawl 101 is pivoted, preferably by means of a screw 105. The pawl 101 is urged to effective position by a spring 106 secured to the lever 100'by a screw 107, and the movement ot' the pawl 101 under the urging of the spring is limited by a stop or pin 108 projecting downwardly from the pawl to engage the outer face of the lever.

Usually the levers lor stops are substantially rigid 'and not only serve to prevent overthrow but actually lock the dials 30 against movement when the general operator 25 is in its normal rearward position. To enable the units dial to be advanced by the star-key 67, the lever 55, associated with the units dial, is articulated or made in two parts 109 and 110. The part 110 is mounted op the part 109 b y means of a pivot 1,11a and its movement is limited by rearwardly-extending ngers 112 on opposite sides of a. pin 113 secured in the part 109, the part 110 being urged to its normal position by a spring 114 coiled around the pivot 111 and having` its opposite ends engaging, respectively, a projection or pin 115 on the part 109 and the free end of the part 110. It should be understood that the spring 114, although strong enough to prevent overthrow of the units dial, atthe end of the stroke of the associated computing bar will permit said units dial to be advanced one step by the star-key 67.

In order to obtain the sum of the numbers oi' the coupons in a plurality of bunches or packs, use is made of a reverse-dial reg-v ister, which may be of the form in use in the Underwood bookkeepinr machines, so thatl concurrently with the c earing by subtraction of the number of' coupons in a pack from the register in which such numbers are computed, the number will be run into the reverse-dial register additivel and the total number of coupons in the different packsI will be computed and registered in the reverse-'dial register. Hereinafter, for convenience, reference will be made to the reversedial register as register No. 1 and to the other register as register No. 2.

`An illustration of the work to be done is given in Figure 4. By suitably setting addition and subtracting stops on the carriage, in a Well-known manner, the bookkeeping machine may be made to subtract from register No. 2 a number typed in a first' column of a work-sheet 116; to add into register No. 2 a number typed in asecond column; and to subtract from register No.2 a number typed in a third column, and concomitantly add this number into the reverse dials of register No. 1.

Assuming register No. 2 to be clear and the typewriter-carriage in position for typing in the first column, depression of the star-key 67 causes a star to be printed in the first column ot the work-sheet, and one unit to be` added into refrister No. 2. The low serial number 88 in tlie first pack of coupons is then typed in the first column and subtracted from register No. 2, thereby positioniug the dials to correspond to the negative result (-87) the high serial number 90 is typed in the second column and added into register No. 2 to causo the dials thereof to show 3, the number of coupons in the first pack; and the result- 3 is then'ltyped in thelthird column, subtracted from register No.2 to clear the same, and concomitantly run into register No. 1, giving a reading +3.

Inasmuch as register No. 2 has been cleared, the star-key 67 may be depressed to print a star in the third column to indicate clearance and to run one unit into register No. 2 prepara-tory to computing the number Larmes of coupons in another pack-having for the low and high serial numbers 9i. and 127, respectively, Upon typing 91 in the first column and subtracting it from register No.'

ing 37 in the third column and running it into both registers, register No. 2 will be cleared and 37 will be added 'to 3" in register No. 1, giving 40 as the number of coupons in the two packs.

Variations may be resorted to wit-hin the scope of the invention, and po-rtions of the improvements may be used without others,

Having thus described my invention, I claim:

l. In a computing machine,the combina-- tion with a register having denominational dials, of numeral-keys, means operated by the actuation of said keys to perform a correctcomputation between two numbers, and means including a special key yto make the result spurious to vary from the correct re- Sult by a definite amount.

2. In a computing machine, the combina-- tion with a register havingl denominational dials, of numeral-keys, means operated Vby said keys to, effect a computation whichis the'diderence between two numbeis, a special key, and means operated by the actuation of said special key to effect a spurious result greater by onel than the difference between such numbers.

3|. In a. computing machine, the combination with a register having denominational dials, of numeral-keys, a proving key depressible only` when said register is clear, and means controlled by the actuation first of said proving key and then of said numeral-keys, in accordance with the digits of the highest and lowest serial numbers of a series of consecutively numbered articles, for actuatin said dials to register Ia result greater by one than. the difference-between such numbers and consequently the knumber of articles in said series.

'4. The combination with typing mechanism comprising a character-key to cause typing of a corresponding character, of =a dial-wheel operable by said key, means to o'erate said dial-wheel, and means opera le by said dial-wheel to prevent a s ucceeding actuation of said key until the dialwheel has been restored to 0 by saidtirstmentioned means.. 5. In a computing machine, the combination with a register including denominational dials, a proving key, and means to lock said proving key when any one of said dials is out of 0 position, means actuable 'by .said proving key to advance the units 'dial onestep from 0 position to add one,

numeral-keys, and numeral-key-controlled subtraction mechanism to act on said register after the operation of said proving key, to cause the reading of the register to be one greater than the difference between two numbers computed as a result of the depression of said numeral-keys and the consequent addition o eration, and therefore display Vthe num er of consecutively numbered units in a series having such numbers as the high and low numbers in the series.

6. In a computing machine having a register including denominational dials, in conibination, nuineral-keys, numeral-key-controlled subtraction-inechanism to compute the difference between two numbers, a special type-key, means to print a special character by said special key, 'and mechanism operable by said special key to advance the units dial one ste prior to such subtraction to cause the register to indie-ate a spurious result at the end of the subtraction operation, which result is one greater than the actual dii'erence.

7 In a computing machine having a register including denominational dials, in combination, numeral-keys, numeral-key-oontrolled subtraction-mechanism to compute.

the diiereiicc between two numbers, a special type-key, means to print a special character by said special key, mechanism operable by said special key to advance the units dial one step prior to such subtraction to cause the register to indicate a spurious result at the end of the subtraction operation, which result is one greater than the actual difference, and means to prevent a successive actuation of said special key -to advance the dial until the register has been Cleared.

8. In a combined typewriting and computing machine, in combination, .a register having dials, numeral-keys, a proving key to print a symbol to indicate the clearing of the register, locking means controlled bv the dials to prevent actuation of the provingpkey when. any dial is out of position, means opera-ble by said numeral-keys to actuate said dials', and means operable by said proving key to operate one of said vdials to register in said register a spurious l dials, of a proving when all of said dials are set at andv tion with a register having 4denominational key depressible only means to prevent two successive operations of said proving key.

11. In a computing machine, the combi-A nation with a register having denominational dials, of a proving key depressible only when all of said dials are set at 0, and means, actuable by said proving key, to prevent' two successive operations of said proving key.

12. In a computing machine, the combination with a register having denominational dials, of a proving key depressible only when all of said dials are set at 0, and means, actuable' by said proving key, to shift one of 'said dials from its 0 position, and thereby lock said proving key.

13. In a computing machine, the combination with a register having denominational dials, of Va proving key depressible only when all of said vdials are set at 0, means operable by the proving key to advance the units dial one step, and means operable by said dial to lock said proving key, upon its return against a subsequent operation.

14. In a computing machine, the combination With a register having denominational dials, of numeral-keys, means operated by the actuation of said keys to perform a correct computation vbetween two numbers, means including a special key to make the result spurious to vary from the correct result by a definite amount, and

means associated with the dials to revent a successive o eration of the special) key before the dials are all returned to 0.

15. In a cou on-counting machine, the combination wit 1y a register comprisin denominational elements, of numeraleys, numeral-key-controlled devices for setting up numbers, means to actuatesaid devices after they have been set to actuate the denominational elements to compute the difference between two numbers, a special key, and means actuable by said special key to operate one of the denominational elements one step, and thereby effect the registration of a spurious result.

16. In a computing machine, the combination of numeral-Wheels, settable elements to actuate said Wheels simultaneously, one of said elements for each Wheel, a special key to actuate one of'said Wheels independently of the associated settable element, and devices normally effective to hold the numeral-wheels locked against actuation, one of said devices beingarticulated and resilient to yield when the associated Wheel isA operated by the special key.

17.. In a computing machine, the combination of numeral-Wheels, settable elements to actuate said wheels simultaneously, one

of said elements for each wheel, a clearanceproving or special key operable only when the Wheels are in their O position to actuate one of said Wheels independentlyV of the associated settable element, devices normally effective to hold the numeral-Wheels locked against actuation, and means including an element to lock the Wheel-locking devices, the locking element being releasable to enable the wheels to be actuated by said, settable elements, one of said devices-being articulated and resilientto yield When the associated Wheel isoperafedby the special key while the locking element is effective.

18. In a computing machine, the combination of numeral-Wheels arranged in denominational order, settable computing bars to actuate said wheels, a general operator to actuate said bars, locking means normally effective to prevent accidental rotation of said Wheels, means effective on the initial numeral-keys, numeral-key-actuable means` for typing the digits of a number in suc-cessive denominations from higher to lower, means actuable by said numeral-keys for indexing said digits in the various denominations as typed, denomination-selecting means operable by the carriage for said indexing means, a series of dominational dials actuable in accordance with such indexing, a special key, special-key-controlled means for typing a special character, and special-keycontrolled means to advance the units dial independently of the indexing means to produce a spurious result irrespective ot the position of the carriafr'e in which said speclal character is typedb with respectto the position of the carriage in which the numbers are indexed.

20. In a computing machine, the combination of mechanism to compute the algebraic sum of any three numbers, so that said sum exceeds the difference of two of said numbers by the magnitude of the other number which is constant, and mechanism for adding the algebraicv sums of successive computations, said first-named mechanism including a register, a clearance-proving key to'run the constant into said register additively, means to run another number into said register subtractively, and means to run the other numbery into said register additively, the second-named mechanism includinga register having reverse dials, so that -each time the algebraic sum of the three numbers on the dial-wheelsshaft to ctv-operate with is subtracted from the first-named. register the dial-wheel of lowest order to actuate the to clear the latter for a succeeding compulatter independently of the computing bars. tation, saidv sum is added into the second- 24. In a computing machine, the combinau named register. tion of a registeriincludingdial-wheels hav- 35 In .a computing machine, the coming a common axis, computing bars to actubination of mechanism to compute the algeate said dial-wheels, the dial-wheel of lowest braio sum of three numbers sol that said order having a toothed wheel secured to Athe sum exceeds the diii'erencev of two of said side thereo and means to actuate the diall numbers by the magnitude of the other numwheel of Vlowest order independentlyv of the 40 ber whichisa constant, said lmechanism inassociated computing bar, said meansyincluding a clearance-proving key to run ,the cluding a pivoted lever mounted to swing constant into said register additivelvand about the axis of said dial-wheels, and a means to run another number into said'regisspringfpressed pawl pivoted on said lever cluding a de ter subtractively,and means to run the othei` to engage the toothed wheel. 45 number into said register additively. 25. n a computing machine, the combina- 22. In a computing machine, the combination of aregister including dial-wheel havtion of a register includin dial-wheels, ing a. common axis, computing bars to actucomputing bars to actuate said dial-wheels, ate said dial-wheels, the dial-wheel of .lowest and means to cause` a spurious result to be order having a toothed wheel secured Ato the 50 registered in said register, said means inside thereof, and means to actuate'the dialvice at one side o f the register wheel of lowest order independently of the to co-operate with the dial-wheel of lowest associated computing bar, said means inorder to actuate the latter independently of cluding' .a pivoted lever mounted to swing the computing bars. about theaxis of said dial-wheels, a spring- 55 l 23. In a computing machine, the combinapressed pawl pivoted on said lever to engage tion of a register including dial-wheels, a the toothed wheel, a key-operated arm, a shaft to support said dial-wheels, computing link connecting said lever with said arm, and ybars lto actuate said dial-wheels, and a dea stop to limit'the movement of said lever. vice at one side of the register and pivoted ELISHA E. STRONG.

Images